Sanitation
| Fri 17 Apr 2026
Beijing, April 17 -- Ningxia Changhe Tongsheng Technology has secured a patent on Toilet Door Buttress Adding Device. Yang Shiwei, Yan Shengchang, Yan Shengchun, Wu Chenrui, Ma Peng, Yang Duo and Ma Haibo developed the invention.
The patent application number is CN202422261526U 20240914. The patent publication number is CN223..